Harvard University is obstructing a congressional probe into campus-wide anti-Semitism, leading lawmakers to warn the Ivy League school that it will face a deluge of subpoenas if it continues to stonewall the investigation. "Harvard's responses have been grossly insufficient, and the limited and dilatory nature of its productions is obstructing the Committee's efforts," Rep. Virginia Foxx (R., N.C.), the chairwoman of the House Committee on Education and the Workforce, wrote to interim Harvard president Alan Garber on Wednesday. Harvard has until Feb. 14 to produce documents outlining its internal response to a growing wave of anti-Semitism on campus, including records...